* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`
* usw.

```Python hl_lines="6"
{!../../../docs_src/response_status_code/tutorial001.py!}
```

!!! note "Hinweis"

与指定响应模型的方式相同，在以下任意*路径操作*中，可以使用 `status_code` 参数声明用于响应的 HTTP 状态码：

* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`
* 等……

```Python hl_lines="6"
{!../../../docs_src/response_status_code/tutorial001.py!}
```

!!! note "笔记"

    注意，`status_code` 是（`get`、`post` 等）**装饰器**方法中的参数。与之前的参数和请求体不同，不是*路径操作函数*的参数。

`status_code` 参数接收表示 HTTP 状态码的数字。

!!! info "说明"

    assert response.status_code == 200
    assert response.json() == "foo bar"


def test_query_param_query_50():
    response = client.get("/query/param?query=50")
    assert response.status_code == 200
    assert response.json() == "foo bar 50"


def test_query_param_required():
    response = client.get("/query/param-required")
    assert response.status_code == 422
    assert response.json() == IsDict(

            - charset
            - status_code
            - media_type
            - body
            - background
            - raw_headers
            - render
            - init_headers
            - headers
            - set_cookie
            - delete_cookie

::: fastapi.responses.ORJSONResponse
    options:
        members:
            - charset
            - status_code
            - media_type

                # responses in Starlette
                response_signature = inspect.signature(current_response_class.__init__)
                status_code_param = response_signature.parameters.get("status_code")
                if status_code_param is not None:
                    if isinstance(status_code_param.default, int):

    assert response.status_code == 200, response.text
    assert response.json() == "Hello World"


def test_nonexistent():
    response = client.get("/nonexistent")
    assert response.status_code == 404, response.text
    assert response.json() == {"detail": "Not Found"}


def test_path_foobar():
    response = client.get("/path/foobar")
    assert response.status_code == 200
    assert response.json() == "foobar"

Pero aún quieres poder filtrar y convertir los datos que retornas con un `response_model`.

Para esos casos, puedes usar un parámetro `Response`.

## Usar un parámetro `Response`

Puedes declarar un parámetro de tipo `Response` en tu *función de la operación de path* (como puedes hacer para cookies y headers).

Y luego puedes establecer el `status_code` en ese objeto de respuesta *temporal*.

Anschließend können Sie den `status_code` in diesem *vorübergehenden* Response-Objekt festlegen.

```Python hl_lines="1  9  12"
{!../../../docs_src/response_change_status_code/tutorial001.py!}
```

Und dann können Sie wie gewohnt jedes benötigte Objekt zurückgeben (ein `dict`, ein Datenbankmodell usw.).

    assert response.status_code == 200, response.text
    content = response.json()
    assert "access_token" in content
    assert content["token_type"] == "bearer"


@needs_py39
def test_login_incorrect_password(client: TestClient):
    response = client.post(
        "/token", data={"username": "johndoe", "password": "incorrect"}
    )
    assert response.status_code == 400, response.text

    assert response.status_code == 200, response.text
    content = response.json()
    assert "access_token" in content
    assert content["token_type"] == "bearer"


@needs_py310
def test_login_incorrect_password(client: TestClient):
    response = client.post(
        "/token", data={"username": "johndoe", "password": "incorrect"}
    )
    assert response.status_code == 400, response.text